SA575 Philips, SA575 Datasheet - Page 3

• Manufacturer Part Number: SA575
• Description: Low voltage compandor
• Manufacturer: Philips

Philips Semiconductors
BLOCK DIAGRAM and TEST CIRCUIT
DC ELECTRICAL CHARACTERISTICS
Typical values are at T
SSOP package is tested at +25 C only. V
1997 Nov 07
For compandor, including summing amplifier
SYMBOL
Low voltage compandor
V
THD
V
E
V
V
0dB
I
R
CC
REF
REF
NO
CC
OS
L
Supply voltage
Supply current
Reference voltage
Summing amp output load
Total harmonic distortion
Output voltage noise
Unity gain level
Output voltage offset
Output DC shift
Tracking error relative to 0dB
V
OUT
GND
A
= 25 C. Minimum and Maximum values are for the full operating temperature range: -40 to +85 C for SA575, except
V
+
IN
GND
PARAMETER
+
C
2.2 F
1
10 F
10 F
C3
RECT
10 F
+
C6
2
GND
+
CC
= 5V, unless otherwise stated. Both channels are tested in the Expandor mode (see Test Circuit)
10
1
2
3
4
5
6
7
8
9
Figure 2. Block Diagram and Test Circuit
3.8k
10k
10k
+
–
V
REF
GND
OP AMP
Gain cell input = 0dB, 1kHz
Rectifier input = 6dB, 1kHz
Gain cell input = 0dB, 1kHz
Rectifier input = -30dB, 1kHz
G
1kHz, 0dB BW = 3.5kHz
BW = 20kHz, R
TEST CONDITIONS
No signal to 0dB
575
No signal
V
No signal
CC
1kHz
3
= 5V
OP AMP
S
G
= 0
V
CC
+
–
10k
10k
3.8k
20
19
18
17
16
15
14
13
12
11
V
CC
C
-150
-100
RECT
MIN
-1.5
-1.0
-1.0
2.4
10
C11
+
2.2 F
3
3
+5V
+
4.7 F
30k
R7
R13
0.1 F
10k
C15
LIMITS
SA575
TYP
0.12
4.2
2.5
5
6
C8
10 F
+
C14
+
30k
GND
R8
1 F
V
+
IN
10 F
C10
MAX
Product specification
150
100
GND
5.5
2.6
1.5
1.5
1.0
1.0
30
7
V
REF
SA575
V
OUT
SR00704
UNITS
mA
mV
mV
k
dB
dB
dB
%
V
V
V